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Best PEO Companies in California

We list California's strongest regional PEOs alongside the national providers, so you can weigh local meal and rest break expertise against national benefits buying power.

Showing 11 of 11 providers in California

Justworks logo

Justworks

New York, NY · est. 2012
Software-led PEOCPEOESAC

Transparent flat-fee PEO for SMBs, startups and remote teams.

4.5
Very Good
National
4.3
Very Good
Local
  • California coverage: Full
  • Transparency: Very Good · PEPM
  • Best for: Small teams that want published, predictable pricing.
$59-$99 /ee/mo
Published PEPM, steps down after 50 employees
No state expansion fee
60+ requests this month
Justworks is a commercial PEOServices.org partner. Rankings are never guaranteed to partners; this card reflects our independent scoring.
Pricing & Transparency▾
Pricing Model
PEPM
Headline
$59-$99 /ee/mo — Published PEPM, steps down after 50 employees
Admin Fee (Basic)
$59 /ee/mo (Payroll)
Admin Fee (with benefits)
$99 /ee/mo (PEO with benefits)
Setup Fee
$0
Min. Employees
1-2
Early Termination
$0 (month to month)
Benefits Markup
Disclosed; none on master medical
Transparency
Very Good
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
New York, NY
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Yes
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Enterprise
Dedicated Support
Yes
Min. Commitment
None
Rippling PEO logo

Rippling PEO

San Francisco, CA · est. 2016
Software-led PEONo CPEO

Best-in-class software unifying HR, IT and payroll, with a PEO on/off toggle.

4.1
Good
National
4.3
Very Good
Local
  • California coverage: Full
  • Transparency: Good · PEPM
  • Best for: Tech-forward teams that want to switch the PEO off later and keep the platform.
From $8 /user/mo + modules
Modular; ~$25-$50 all-in before IT modules
No state expansion fee
50+ requests this month
Pricing & Transparency▾
Pricing Model
PEPM
Headline
From $8 /user/mo + modules — Modular; ~$25-$50 all-in before IT modules
Setup Fee
Quote
Min. Employees
5
Early Termination
None (monthly available)
Transparency
Good
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
San Francisco, CA
Certifications▾
IRS-Certified PEO (CPEO)
Not certified
ESAC Accredited
Not accredited
NAPEO Member
No
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Enterprise
Dedicated Support
Yes
Min. Commitment
None
TriNet logo

TriNet

Dublin, CA · est. 1988
National PEOCPEOESAC

Industry-vertical PEO packages for tech, life sciences, finance and nonprofit.

4.0
Good
National
4.0
Good
Local
  • California coverage: Full
  • Transparency: Average · % of Payroll
  • Best for: Companies wanting deep industry-specific benefits and HR.
~$150 /ee/mo
Quote-based; vertical packages
No state expansion fee
45+ requests this month
Pricing & Transparency▾
Pricing Model
% of Payroll
Headline
~$150 /ee/mo — Quote-based; vertical packages
Setup Fee
Quote
Min. Employees
5
Early Termination
Per contract
Transparency
Average
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
Dublin, CA
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Yes
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Advanced
Dedicated Support
Yes
Min. Commitment
12 Months
ADP TotalSource logo

ADP TotalSource

Roseland, NJ · est. 1998
National PEOCPEOESAC

The nation's largest PEO, with enterprise-grade technology and benefits scale.

3.9
Average
National
4.0
Good
Local
  • California coverage: Full
  • Transparency: Poor · % of Payroll
  • Best for: Companies of 50-500 wanting enterprise tech and a 30-day exit.
~$130-$200 /ee/mo
Quote; supports 700k+ worksite employees
No state expansion fee
35+ requests this month
Pricing & Transparency▾
Pricing Model
% of Payroll
Headline
~$130-$200 /ee/mo — Quote; supports 700k+ worksite employees
Setup Fee
Quote
Min. Employees
5
Early Termination
30-day notice
Transparency
Poor
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
Roseland, NJ
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Yes
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Enterprise
Dedicated Support
Yes
Min. Commitment
12 Months
Insperity logo

Insperity

Kingwood, TX · est. 1986
National PEOCPEOESAC

High-touch HR consulting with 90+ US offices and dedicated service teams.

3.9
Average
National
4.2
Good
Local
  • California coverage: Full
  • Transparency: Poor · % of Payroll
  • Best for: Businesses that value a hands-on, dedicated HR partner.
~$150-$300 /ee/mo
Percentage of payroll; quote only
No state expansion fee
30+ requests this month
Pricing & Transparency▾
Pricing Model
% of Payroll
Headline
~$150-$300 /ee/mo — Percentage of payroll; quote only
Setup Fee
Quote
Min. Employees
5
Early Termination
Per contract
Transparency
Poor
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
Kingwood, TX
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Yes
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Advanced
Dedicated Support
Yes
Min. Commitment
12 Months
Paychex PEO logo

Paychex PEO

Rochester, NY · est. 1971
National PEOCPEOESAC

SMB-focused PEO integrated with the Paychex Flex platform.

3.8
Average
National
3.8
Average
Local
  • California coverage: Full
  • Transparency: Average · Hybrid
  • Best for: Smaller teams wanting a recognised national brand.
~$40-$160 /ee/mo
Hybrid: PEPM or percentage by size
No state expansion fee
25+ requests this month
Pricing & Transparency▾
Pricing Model
Hybrid
Headline
~$40-$160 /ee/mo — Hybrid: PEPM or percentage by size
Setup Fee
Quote
Min. Employees
5
Early Termination
Per contract
Transparency
Average
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
Rochester, NY
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Yes
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Advanced
Dedicated Support
Yes
Min. Commitment
12 Months
Aspen HR logo

Aspen HR

Walnut Creek, CA · est. 2017
Local · CACPEOESAC

White-glove PEO for PE funds, portfolio companies and finance.

Acquired by Engage PEO (Dec 2025).

4.5
Very Good
State
  • California coverage: Full
  • Transparency: Average · Hybrid
Custom quote
Quote-based, estimated
Estimated
No state expansion fee
10+ requests this month
Pricing & Transparency▾
Pricing Model
Hybrid
Headline
Custom quote — Quote-based, estimated
Setup Fee
Quote
Min. Employees
Not disclosed
Early Termination
Not disclosed
Transparency
Average
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
Walnut Creek, CA
Home State
CA
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Yes
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Advanced
Dedicated Support
Yes
Min. Commitment
12 Months
Emplicity logo

Emplicity

Irvine, CA · est. 1995
Local · CACPEO

California SMB HR for restaurants, retail and construction.

Acquired by Vensure (2024).

4.1
Good
State
  • California coverage: Full
  • Transparency: Average · Hybrid
Custom quote
Quote-based, estimated
Estimated
No state expansion fee
10+ requests this month
Pricing & Transparency▾
Pricing Model
Hybrid
Headline
Custom quote — Quote-based, estimated
Setup Fee
Quote
Min. Employees
Not disclosed
Early Termination
Not disclosed
Transparency
Average
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
Irvine, CA
Home State
CA
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Not accredited
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Basic
Dedicated Support
Yes
Min. Commitment
12 Months
Ambrose Employer Group logo

Ambrose Employer Group

California ops · est. 1997
Local · CACPEOESAC

Entertainment and technology compliance.

4.3
Very Good
State
  • California coverage: Full
  • Transparency: Average · Hybrid
Custom quote
Quote-based, estimated
Estimated
No state expansion fee
10+ requests this month
Pricing & Transparency▾
Pricing Model
Hybrid
Headline
Custom quote — Quote-based, estimated
Setup Fee
Quote
Min. Employees
Not disclosed
Early Termination
Not disclosed
Transparency
Average
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
California ops
Home State
CA
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Yes
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Basic
Dedicated Support
Yes
Min. Commitment
12 Months
Flexible PEO logo

Flexible PEO

California
Local · CANo CPEO

Fast customer service and hourly-workforce compliance.

4.4
Very Good
State
  • California coverage: Full
  • Transparency: Good · Hybrid
Custom quote
Quote-based, estimated
Estimated
No state expansion fee
10+ requests this month
Pricing & Transparency▾
Pricing Model
Hybrid
Headline
Custom quote — Quote-based, estimated
Setup Fee
Quote
Min. Employees
Not disclosed
Early Termination
Not disclosed
Transparency
Good
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
California
Home State
CA
Certifications▾
IRS-Certified PEO (CPEO)
Not certified
ESAC Accredited
Not accredited
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Basic
Dedicated Support
Yes
Min. Commitment
12 Months
Vensure HR (CA) logo

Vensure HR (CA)

Chandler, AZ (CA ops) · est. 2004
Local · CACPEO

Fast-growing multi-regional PEO, active across California.

3.8
Average
State
  • California coverage: Full
  • Transparency: Average · Hybrid
Custom quote
Quote-based, estimated
Estimated
No state expansion fee
10+ requests this month
Pricing & Transparency▾
Pricing Model
Hybrid
Headline
Custom quote — Quote-based, estimated
Setup Fee
Quote
Min. Employees
Not disclosed
Early Termination
Not disclosed
Transparency
Average
State Coverage▾
California coverage
Full
State Expansion Fee
None
Home Base
Chandler, AZ (CA ops)
Home State
CA
Certifications▾
IRS-Certified PEO (CPEO)
Yes
ESAC Accredited
Not accredited
NAPEO Member
Yes
Benefits & Services▾
  • Payroll & Tax Filing
  • Health Benefits (Master Plan)
  • Workers' Comp
  • 401(k) Administration
  • ACA Reporting
  • HRIS Platform
  • EPLI
  • Dedicated Support
Platform & Support▾
Software Tier
Basic
Dedicated Support
Yes
Min. Commitment
12 Months

California PEO services: frequently asked questions

How much does a PEO cost in California?

California PEOs usually quote $80 to $180 per employee per month, slightly above the national average because of meal and rest break compliance and PAGA exposure. Regional CA providers often justify the premium with deeper wage-and-hour expertise.

Do I need a CPEO in California?

Not legally, but California's wage claim environment makes financial and compliance backing valuable. IRS certification and ESAC accreditation both signal that. Several CA regionals like Aspen HR and Ambrose Employer Group carry both.

Which PEOs are based in California?

Aspen HR (Walnut Creek), Emplicity (Irvine), Ambrose Employer Group and Flexible PEO are the regional players we list, alongside the six national PEOs. Note that several have changed ownership recently, so confirm current status before signing.

Compare PEO services in other states